It won't stick! One-of-a-kind "ridges and ditches" on the sounding board keep the call from sticking and give the call its raspy highs and lows. Tuning hole in stopper allows you to vary pitch. Covered, the pitch is lower; uncovered, the pitch is higher. Double reed is perfect for mainstream waterfowlers. Graphite sounding board, internal parts, and stopper are molded from graphite, the ideal sound conducer. The barrel is molded from super-hard glass-filled polycarbonate. Perfect for close-in timber or open water calling.